In order to ensure the continuity of power output during the power shift process of cotton picker,a regional cross-control strategy was proposed with multiple clutches as the research object.The power shift transmission scheme and shift hydraulic system of cotton picker were designed.The hydraulic transmission system model of cotton picker was analyzed and built.The response of clutch,brake,motor,driving speed and displacement of solenoid valve spool was analyzed.The test results show that the speed curve of the cotton picker rises smoothly,there is no power interruption during the shift process,and there is no obvious power shift impact,which verifies the effectiveness of the strategy.